Bumper



E22, WALIHVEW BUMPER Filed Aug. l, 1927 T F Fl@ i 'UNITED STATES PATH BUMPER.

Application filed August 1, 1927. Serial No. 269,681.

llhe invention relates to humpere :for auto tation iii the spring or eup'iortihg ii'iehiher. 5 iiiohilee ih Vwhich e. tubular impact bei: Figure 3 :i :fieetio'iiel 'View telieii through supported upon the eocle of e pair of springe the bumper spi-ii L illiiifstmtiiig in eleve.- lit'ecl to :rml elitemlhig 'from the :treme et tion the horizonte-l tiihlilztr bumper our held .3 the Vehicle. ih pleee hy the epi-inge.

lhe 'invention prinmrily .i5-i directed lo the Referring to the orzrwlngge? l lmiliezttee am GU Structure ol the eprii'igg; iler ei'ietziiiiiiiyj; the Chil ol.l eh ei'itouiioliile treme reineeenting; hopert lmr :xml provides; i ilij ii'ii.g ol e eti-ii) the commereiztl, type el' 'treme eonetroetioii el ine/tel Shaped, lo poussin-r1 the clmrectcri:: ol ehem el loer.J with. :L vehicle Spring; 5:) oon- U tice olf plural eupifrpoeeil leurcii l'or the vehe-cteil thereto hy it :shackle holt Il. They hicle torment-trier portion o l' t 1e spl-hrsg; :mil drzm'iiige only Show one el the 'treme enfle, U5 oli plural eiiziceil loop loriiieti 1i vl'or the iro eimilei.' eoiietruetioo following; iler the opoziet receivioli,I foul impact hair Sustaining poeite eiiflee of the freine with the enfle portiere: .llhe loops :it the impec.: her :rre elr'( tly eorrecl ilormwerclly :IelloWi the le? joined 'with :t return lrieml :lor Spacing the ilireife/ilihgg preetiee olf eiitemoliile :teme

loops9 the whole structure heilig of opprmrieoiletii'uetioii. iiizielj/ tl le ign, "whereby the 'hice or lumi; To meet the eoimriereiel conditions; in the loop presents e epring portieri 'llexihle mul vzuizition in rzmre eiul eo'iistruetionea the yichlelile under light impact :uml Aeriwieg hiiioper springe ere preferably :mounted .A the iiiiiieet her :rml e, ,eeco'iul er reer loop ef-i upon hrziolaets reepectively lixeil to the rehi :a reinforcement or hrzice tor the limit loir). ele 'freine l. ln the present illstzmee, the f llt ie therefore :m object et the iiwc' Aion Spring; eopportihg hreclret elf, ie illustrated te to previce n. pulir of .epriiigre for u ele being.; oli e.. type Shown '.tml 4cleeeril'iecl in lmjmper ir iinpziet her, euch spring; lm'vihg Patent No. MGi-25,758, grunted to me Septem- 25 t Stable etteel portion. el] plm-el lent ber 2T. 192i", with the lnfeelet resting upon loriimtieh Yfor eoiuiectiiiggj the spring' to the the vehicle freine sind securely bolted theretf1 *vehicle traine. mail Lloiihle llexihle loops eite et two or more pointe and .trreiigeil so tending from the :itteehiifg portieri. one loop that under iiupeet the hreellret will heer carrying the impact her and the second loop Clowii upon the treme :mil transmit the joining with. and epzieed from the first loop shocks to the frame :wel eer Springs Se that ire e hrziee or reinforcement therefor onder the eer Springs will meterielly relieve the .Cuevere impacte. bumper und eei'meetingi pzrrte of the iulpeet ili'iother ohject ol? the ihvciitioii, is to pro* Streihe. The l'ireelet lJl'll-S lll'@gunt il' vide e. spring' ol? Llouhle loop jlformatioo 'lor curved form oif eeet for the atteehihlig or :15 mirrjy'iiig the iniviizlct he uml a double thieliteil eiul oil the bumper eijiriugs; to reels-it heer: heyoml the leope lier coioiee'iiie; the longitudinal u'ii'ivement elf the springs. $0 epi-hr2.' lo the vehiele freine7 :ill loroiecl from The rear eui'l olf the hrztelret ie liormeil :1. single Strip oil spring iiiel'el heut upon with. :t crees rib or lugl (i extei'iilihg eheve Vitscl'l :mil in approximately U-ehepe with the 'upper or eeztt .'iiirfiee of the hrtelcet :is fle ooe olf the loopS et .itel lfree end ileprceseclto mi zihutmeiit tor the hott emile of the Spring.

receive the ti'ihuler impact her. A. 111g` er eer 'i (lepehile :from one sifle ol? the 95 lfm-ther objects :mel nilvzmtzif ei will he plate for connecting; the plete to the shackle V ("7 more liully Set l'erlih in the ileecriptioh olf holt 3 which connects the eer Spring to the the aceoiupSolft/*irrev elrewing torii'iingl :i port eer Alireme. The hreelete ere preferably le olt this Specil'ieetion. :in which: mede oil rights wel lette ih e set to bring; the

Figure l is i side elevation of the imlug; et relatively opposite siilee et the ear E00 proved hi'iihper Spring' or Supporting; iueihtreme, :mil erich hraelet is further provided. her showing; it attached te the leiwrefwl eiicl with ai. lateral erm or lue; 8 projeetiligll thereol' en automobile chassis uml showii'itl the from :it it side opposite the lug' 7,' Miel is 5e huinper her in eeetoii nml in poeitieil on the adapted to he holtecl to Ae cross roel 9 of Spring. the ear frame. 105

fligure 2 :is e eeetionel View tzilieh ou line lt is reeog'hiL/.efla however, that the l. lligjiire fl, ehm ingr the nimmer in bimiper eprii'iggs could he (lireetljgf holteil h the, bumper liar :is secured against reupon the eer frame or Varioi're other forms rch le the spring end is secured.

end of the spring may be otherwise shaped i clips for each pair employed are of duplicate lconstruction, and therefore, the detailed description thereof will be confined to the singular.

` Each spring, therefore, comprises, or constitutes, Aan integral structure of strip or flat bar metal bent and shaped to approximately Uform and upon itself to provide a plural leaf or thickness of metal for the attaching'end or portion 13 of the spring with t-he leaves thereof relatively superposedv and engaging upon one another or lapped together and curved longitudinally corresponding to the curvature of the seat surface .of the bracket a upon and to which The attaching to meet or correspond to any attaching surface, while in the preferred design certain advantages are obtained as it permits the Spring attaching end to be seated upon the bracket or end of the vehicle frame, the curvature resisting longitudinal motion and providing for more securely bolting or clamping the spring to the car frame and not as liable to loosen up in service.

From the attaching end, the spring bends or curves to give the same U-form and pro- Vide a pair of flexible stanchions lll-l5 which connect or join at their upper end by a return bend appropriately spacing the forward or first loopor stanchion l/l from the rearward or second loop or stanchion 15. The metal for each loop contacts for the return bend portion 16 as the juncture for the-loops and attaching end beyond the bracket, giving the spring double or increased thickness of metal for the portion where the majority of breakage occurs.

The forward or first loop 11i at its upper end is depressed to provide a curved seat portion 17 for the impact bar holding clip 12.. The forward or first loop being of a single thickness of'material-and flaring forwardly away from they second loop l5 and of increased curvature for the connecting or intermediate portion 16, is sufficiently flexible to yield under light impact7 while the second loopis brought forwardly suliiciently toy have a yielding capacity and positioned to reinforce or brace the first loop under heary impact. rlhe rear loop acts as a spacer and establishes a maximum defiection of the spring, and this way also eliminates breakage on severe impacts, the, rear loop being capable of touching the tail or attaching end of the spring with a maximum deflection of appro.\:imately Ill/ or IlY inches. The phase operation of the spring allows maximum Yflexibility for thc forward loop which reinforcei by the inner loop proportionately with the load supplied.

"he double .spring portion rear the har gives the spring` a sturdy appearance and a better proporticmed appearance in relation to the bar. ,ltalso reduce-i general rihration resulting from t ie travel of the ear, .so that there is no rattle, and the clampingl parts will not worhY loosee.

The Split clip 'l2 has an eye 'portion ein gaged about the tubular impact bar with the rear side nested in the seat lo formed in the front or forward loop lLV Vthe spring and secured to the spring by a ly 'ln plaeed so that its longitudinal axis is preferably along the diametrie line of the impae har. The head of the bolt engages into a recess or notch l5) in the impact her, serving); a.. a key to lock the bar against roiaiire or longitudinal movement. rllhe clip lrictionally clamps the impact bar to the spring wil h the compression ends or lips 2l of the clip coinpressed together and secured lo the l'ron loop by a bolt 22.

The front loop la assmnes apprdximately a vertical position and extends upwardly lo a height for providing a fender area eliminating over and under riding ol' other bumpers and yields in an angular downward direction, transmitting the shocksl to ther ear frame and ear springs, so that the l'oree of any impact is not borne entirely by the bumper springs, and being reinforced hy the second or rear loop the spring eau he made of .sufficient light material :lo thaty il will gire, readily under a small impact. thus giring inv creased flexibility, and in bringing the ends of the metal together and upon one another for the attaching` end stability if: obtained at points most required.

Having described my invention. l claim:

l. A bumper for \'eliicles comprising :in impact har, and impact har sustaining springs for attaching they har io opposite sides of the vehicle frame, eaeh .springI ol' a single flat metal har bent into plural loop formation joined and spaced apart at one end providing a, pair of flexible iflanehions for carrying said impact bar and at the opposite end lapped together to proride a stable attachment end for securingthe spring to the vehicle.

2. A bumper for vehicles, comprising an impact bar, and impact bar sustaining springs for attaching the bar (o oppositey sidesv of the vehicle frame, each spring of Mmmm iiuiltiplc E-f0i1im17i0i1 providing u. pail' 0i flexible smiichiolis 'for @crying .said impact bailmic m the oppcsiic and @ppl-Ci ogcthci foi ecuiing he Spring; i@ the which.

lc buiilpci' ii'oi ai Vchicim ccuipiiefsinlf; iiiipucx hay, iiupact im?! susitziiningg f im yicidiiiggily coiiiiccf'ing; thc mi i Mic, which ai; Opposite :aims ni1c1'cci", @ich 55: conf-imiig criilic atiiiciiicn poiifm@ f epzicc zipm't, mic cm'l'yiiigg the iliipzict Li md the fsccoiid i'ciiiifoi-ciiigg the inist, :i .Mimi le; i? pcrimi fui: connection, upon thc c Y" 'the 'v'cilicic ifziinc, amd fi spring cip ,'zigcd @limit the impact has.' und secured ai ih@ fiumi.' @if smid siziiiciiions.

li. i bi'iii'ipei' in.' ai ifcbicie9 cmipifis-singg iii impact im?, spiking@ im' sustaining anni cfm-- iiccimg said impiici bau' ivo the mici of Hic 'vc-- hid@ ifixzmicg cach spying; coiiwgiiiaaiiig :i 'pziii mi Mops winced aifimi' at one md iiui 'Hex-- iiiy similia ii ih@ impact 1mi' :imi lapping izwpjchcii oppfifeiixc cud "cf :Mimi imm:

Mic, imi 'to mid iii'sic loop.

imfiimi within che clip in wiziicsa whciicni", 'i imi-mum uhmm-Hice my immo. 

